sum = 0
a = 1
whlie(a <= 100):
#     sum = sum + a
#     a = a + 1
# print(sum)

while():
    print('无限循环中！！！')



count = 0

while count < 5:
    print(str(count),'<5')
    count = count + 1
else:
    print(str(count)+'=5')
    